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BI铋元素灯HOLLOW CATHODE LAMP: Bi L2433,用于AA-6650
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Bi铋元素灯HOLLOW CATHODE LAMP: Bi L233,用于AA-6650
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四螨嗪标准溶液,74115-24-5,analytical standard,10ug/ml in actone
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五水合硝酸铋 | 10035-06-0 | 乐研
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水中硝酸根成分分析标准物质,500μg/ml ±1% (20℃)
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Bi铋元素灯HOLLOW CATHODE LAMP: Bi L233,用于AA-6880
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灭幼脲标准溶液,57160-47-1,analytical standard,10ug/ml in acetone
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外环氧七氯标准溶液,1024-57-3,analytical standard,10ug/ml in Petroleum ether
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水中硝酸根成分分析标准物质,1000ug/ml ±1% (20℃)
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倍硫磷标准溶液,55-38-9,analytical standard,10ug/ml in acetone
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